Why do generations differ so much in duration?

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I have always wondered why some generations are widely recognised to last ~15 years, others 18, some others 25. What even constitutes a generation?

In: Biology

7 Answers

Anonymous 0 Comments

Because generations are more strongly defined by events than duration. For example, the baby boom starts 1945 because that’s when soldiers came home from WWII. And Generation X starts 1961 because that’s when the birth rate started dropping following the release of the Pill in 1960.

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